Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A069877
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A069877 Smallest number with a prime signature whose indices are the digits of n. +0
1
2, 4, 8, 16, 32, 64, 128, 256, 512, 2, 6, 12, 24, 48, 96, 192, 384, 768, 1536, 4, 12, 36, 72, 144, 288, 576, 1152, 2304, 4608, 8, 24, 72, 216, 432, 864, 1728, 3456, 6912, 13824, 16, 48, 144, 432, 1296, 2592, 5184, 10368, 20736, 41472, 32, 96, 288, 864 (list; graph; listen)
OFFSET

1,1

EXAMPLE

a(12) = 2^2*3^1 = 12. a(231) = 2^3*3^2*5^1 = 360.

CROSSREFS

Cf. A061509.

Sequence in context: A104144 A123464 A113019 this_sequence A085940 A061509 A086066

Adjacent sequences: A069874 A069875 A069876 this_sequence A069878 A069879 A069880

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Apr 25 2002

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Jul 05 2002

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 9 18:50 EST 2009. Contains 170568 sequences.


AT&T Labs Research